May 30, 2017

Learn What's Inside Your Roof

There’s much more to your roof than the type of shingle or other material you put on top. It’s important to have a basic understanding of this before you begin getting bids from contractors.

The 8 Basic Components of Your Roof

1. Truss/Rafters: The wooden structural framework that supports the outer layers of the roof.

2. Decking/sheathing: This is the foundation of your roofing system. Decking material varies, but OSB (oriented strand board) or plywood is attached with nails to the truss/rafters to cover a house.

3. Underlayment: A sheet of asphalt-saturated material installed onto the decking that provides a temporary barrier against rain and wind before the shingles are installed. It also provides an extra layer of protection for the roof deck in case of broken or torn shingles.

4. Shingles/Roof Covering: Shingles, tiles, etc., that make up the outer shell of your roofing system.

5. Drainage: the features of the roof system’s design, such as shape, slope, layout, etc., that affect its ability to shed water.

6. Flashing: Aluminum or galvanized steel strategically placed over joints in the roof and wall construction to prevent water from entering.

7. Soffit:  The board that helps bridge the gap between the siding and roofline. Also helps ventilate the attic.

8. Fascia:  Connected to the soffit and roofline. Board hods gutters in place while providing additional protection from water and wind.

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